Trash remover



C. J. RAYNOR May 1, 1956 TRASH REMOVER 5 Sheets-Sheet 1 Filed June 16, 1953 Charlie J. Raynor INVENTOR.

May 1, 1956 c. J. RAYNORV TRASH REMOVER 3 Sheets-Sheet 2 Filed June 16, 1953 Char/n9 J Raynor INVENTOR.

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TRASH REMOVER Filed June 16, 1953 3 Sheets-Sheet 3 Charlie J Raynor IN VEN TOR.

. 2,742.,4s4 TRASH nsrn'ovnn Charlie J. Raynoigltocky Mount, N. C. Application June 16, U53, Serial No. St'elfibd- Claims; (Cl. 19- 55) This invention relates. to a trash remover and particularly to a device for removing trash from the interior of cotton cleaning machines such as delinters, oilmill linters, cottonsgins or other cotton cleaning devices.

in the operation of cotton cleaning devices such as delinters, oil mill linter or cotton gins it is customary to provide a cylinder of linter saws for removing the lint from the seed or other raw cotton material. It is also customary to provide a roll. box so that the raw cotton is presented to the linter saws, and ire-presented as often as. is necessary to secure completecleaning of the lint from the seed or other trash in the raw cotton. 'While delinters, oil mill linter, cotton gins 'or other cleaners are provided with means for-removing, the clean seed and other trash from the material presented to the saws it frequently happens that the roll. box becomes substantially choked with trash or other foreign material which gravitates to the center of the roll box and eventually produces choking action therein which not only reduces the rate of flow of the. raw cotton through the machine but in extreme cases may choke down the roll box and force a close down of the delinting machine. v

I The present invention provides a trash remover for removing this extraneous or foreign material from the center of the roll box and also for eliminating loose trash from the roll box. w

This is accomplished by means of providing a perforated roll box with breaker or heater members positioned adjacent to the exterior of the roll box so. that any .foreign material which shouldjbe in the roll box will be caught in the perforations and broken OE and carried away by the breakers exterior thereto. Likewise a perforated cylindrical member or tubular member is provided within the central portion of the rollbox so that the trash or other material which gravitates to the center of the roll box will be forced through the perforations of the tubular member and a breaker will be provided substantially sweeping the interior surface of'the tubular member so that any trash or'foreign inaterial which becomes stuck in the perforations will be: broken off and carried away and preferably into the" tubular member. A suitable conveyor such as a spiral conveyor is provided within the tubular member and preferably is the axis ofthe breaker member so that a combined breaker and coneyor member will be provided-within the interior of the tubular member to convey any trash or other such material to the exterior portion of themachine. It will usually be found desirable to provide a fan or other air pump device and a suitable suction connection from the pump to the interior of the tubular member so that any lightweight material caught in the tubular member will be readily drawn therethrough while the heavier material will be readily carried along by the air force and the assistance of the spiral conveyor.

It is accordingly an object of the invention to provide a cleaner for a cotton cleaning machine.

It is a further object of the invention to provide a 2,743,484 I Patented May 1, 1956 'ice j V 2' means for removing trash from the roll box of a cotton cleaning machine.

It is a further object of the invention toprovide a roll box having an axially disposed trash remover therein.

It is another object of the invention to provide an improved seed board for a cotton seedcleaning machine. I a

It is still another object of the invention to'provide a seed board havingapertures for the passage of trash.

Otherobjects and, many of. the attendant. advantagesof the present invention will be apparent from the'fol lowing detailed description taken in conjunction withthe accompanying drawings in which: 7

- Figure '1 is a perspective view of a cotton gin stand according to the invention;

Figure 2 is a cross section through the cotton gin stand according to the invention;

Figure 3 is a vertical sectional elevation taken substantially on line 3..-3 of Figure 2 through the roll box showing the disposition of the central tubular trash remover and the application of trash removing apertures to th defining surface of the'roll box;

Figure 4 is a sectional view taken substantially on the line indicated by the line 4-4 of Figure 2 and showing the application of a perforated defining member to the roll box;

Figure 5 is a cross section through an oil mill linter Figure 7 is a cross-section through the seed board and the cover; and,.

Figure 8 is a perspective view of the seed board cover.

In the exemplary embodiment of the invention a cotton cleaning machine herein indicated as a gin stand 10 is provided with a cylinder of delinter saws 12 mounted on an axle 14 and driven by any suitable means as is Well known in the art. Raw cotton is fed into the delivery or feed chute 16 from any suitable source'and in the embodiment of the machine here shown the cotton 18 in the chute 16 is presented to the surface of the saws 12 by means of a feeder cylinder 20 having feeder fingers 22 thereon. Feeder fingers 22are so positioned that heavy foreign material or hulls such as the material 24 may readily fall between the fingers 22 and be carried away from the machine while the cotton bolls or other raw cotton will be subjected to feeding by the surface of the saws 12 and fed into the roll box 26 defined by the combs 28 for admitting the raw cotton and the grate fall 349 through which the linter saws 12 deliver the cotton material stripped from the raw cotton. V

The roll box 23 is further definedby means of defining members such as sheet metal walls 32 and 354 andv the seed boardsfifi. Preferably the defining members 32, 34 and 35 are provided with suitable perforations 36 and 38 so that the lighter trash within the roll box 26 will be readily projected outwardly through the perforations 38 and be readily carried away;

Suitable breaker devices are preferably provided adjacent to the exterior surface of the perforated portions of the. defining members 32 and 34 and may be preferably provided in the form of breaker-reels having axles 40 containing finger members 42 adapted to sweep adjacent to the exterior surface of the member 32 and to carry away the trash therefrom. Likewise the member 34 is provided with a breaker reel having an axle 44 and breaker members 46 preferably in the form of longitudinal exending reel members which sweep adjacent to the exterior or outersurface of the perforated member 34 to break OE and carry away any trash which protrudes through the apertures 38. l

'A cylindrical or tubular member 50 provided with 3 suitable apertures 52 is positioned substantially axially in the roll box 26 so that any of the trash working to the center of the roll box 26 may be readily passed through the apertures 52 into the interior of the tubular member 50. An axle 54 is mounted within the tubular member 50 and extends axially therethrough. A breaker member 56 preferably in the form of a spiral land is mounted on the axle 54 and when the axle 54 is rotated by any desired means such as the belt 58 mounted on sheaves 60 the spiral land 56 will sweep the inner surface of the member 50 so that any trash protruding through the apertures 52 will be readily broken away and carried into the tubular member 50. A suction connection 62 is preferably provided on the end of the tubular member 50 and connected to any suitable source of suction such as a fan or air pump. A head box 64 may be provided at the other end of the tubular member 50 and if desired apertures may be produced in the head box 64 so that an air stream may be carried through the tubular member 50 to assist in the conduction of dirt or trash therethrough. Or on the other hand, the head box 64 may if desired be imperforate so that the air will be drawn through the roll box 26 into the tubular member 50 to assist in directing trash thereinto.

In the modification according to Figures 5 to 8 inclusive the invention is shown as applied to a cotton mill linter having a framework 78 in which is journaled a saw shaft 80 having the usual cylinder of linter saws 82 mounted thereon. A rotary brush 84 or other cleaning device such as an air nozzle is mounted adjacent to the saws 12 and cooperates therewith to remove the lint from the teeth of the saws 82. The saws 82 project through a grate fall 86 to contact the cotton seed contained in a roll box indicated generally at 87 which is formed by a perforated back wall 88 and a perforated seed board 90. The perforated seed board 90 is provided with suitable fingers 92 for cooperating with the saws 82 as is well known in the art.

Cotton seed 94 will be contained in a hopper 96 and fed therefrom by means of a feed roller 98 and the amount of seed fed will be controlled by means of the adjustable gate 100. Seed falling from the hopper 96 will fall onto a shaker board 102 which will project it against the lip 104 of the seed board 90. The cotton seed in the roll box as defined by the seed board 90, the grate fall 86 and the back wall 88 will be given a counter-clockwise rotation by the clockwise rotation of the saws 82 so that the seeds will gradually be presented to the surface of the saws 82 to remove the lint therefrom so that the clean seed may drop between the saws and pass out over the grate fall 86. The seed board 90 is provided with a plurality of apertures 106 so that any trash, broken seed or other material contained in the roll box may be readily discharged through the apertures 106 and removed from further contact with the saws 82.

The seed board 90 is adjustable to and from the roll box by means of a plurality of ears 108 which are pivotally connected onto ribs 110 of the seed board and is provided with apertures 112 which engage eccentrics 114 mounted on a support rod 116 which is journaled in cars 118 mounted on the frame 78. The eccentric carrying rod 116 is rotatable by means of a suitable handle 120 so that the members 108 may be readily moved inwardly and outwardly to adjust the seed board 9!) in or out of the roll box as may be desired.

A seed board cover comprises an upper section 122 and a lower section 124 which are hingedly mounted onto the eccentric carrying rod 116 and the upper section 122 is extended into contact with the upper portion of the seed board 90 while the lower portion 124 of the seed board cover extends downwardly in spaced relation to a skirt 126 attached to the seed board 90 and spaced therefrom by means of adjusting screws 130. The screws 130 control the size of the aperture between the bottom section 124 of the seed board cover and the skirt member 126 so that trash or broken seeds projected through the apertures 106 will readily fall between the bottom edge of the cover and the seed board and be rejected by the machine so that they will be free of the saws removing the lint from the seed in the roll box.

In the modification according to Figures 5 to 8 a tubular member 50 is inserted substantially axially in the roll box and will receive the lighter trash which will move to the center of the roll and be removed therefrom as in the preceding modification, it being understood a suction will be incorporated therewith to draw air through the tubular member 50, as described relative to the embodiment of Figures 1-4.

In the operation of the device of Figures 14 according to the invention the raw cotton either as bolls or in other manner is fed into the roll box 26 by any suitable means herein being shown as being propelled thereinto by means of the feeder roller 20 and assisted by the saws 12, although it is obvious that the cotton material may be fed directly into the roll box 26 without the intervention of the roll member 20 or 22. The clockwise rotation of the saws 12 cause counter-clockwise rotation of the raw cotton in the roll box and at the same time they strip the lint from the cotton seed which falls between the saws 12 and outwardly through the chute 66 to be disposed in any desired manner. The staple cotton removed from the seeds will be delivered through the chute 68 to be displosed of in any desired manner. The lint and other material taken from the roll box by the saws will be delivered over the top of the chute 68 and into a lint collecting chamber where the lighter lint is drawn through a suction throat 70 and delivered through an air passage 74 to any desired disposal means while the trash and other dirt will fall to the bottom of the chamber 70 and be removed by means of a spiral conveyor 76.

The operation of the roll box 26 causes the light trash to move against the exterior surface where it will be delivered through the apertures 36 or 38 and removed by means of the heaters 42 or 46 so that it will be delivered to any desired point. The heavier trash moving to the interior of the roll box 26 will be delivered through the apertures 52 into the interior of the cylindrical member and carried away by means of the conveyor lands 56 and the air stream flowing therethrough. Obviously, the beater 56 rotating adjacent the inner surface of the member 50 will break oil and destroy any member projecting through the apertures 52 which is not sufficiently small to readily pass therethrough.

In this manner the trash within the raw cotton will be delivered to the exterior of the roll box so that the operation of the delinting or cleaning machine may be expedited and the maximum flow of cotton into the roll box may be maintained. Further, the removal of the trash from the roll box not only accelerates the raw cotton thereinto and consequently the output of the cleaning machine butalso removes any trash or impurities so that the quality of the lint produced will not be degraded by the presence of trashy material therein.

For simplicity of description the invention has been particularly described as applied to a cotton gin stand and an oil mill linter, but the invention is equally applicable to various other cotton cleaning machines. After the cotton seeds leave the cotton gin they go to the oil mills for further processing. They go through several prod esses in the oil mill linters, such as removing the first cut lint, second cut lint, third cut lint; etc., until the seeds are almost perfectly clean of lint. The trash remover of the present invention is of particular importance in these oil rnill linters because as the roll box is above the saw, the trash is projected through the perforated wall of the roll box and not allowed to get into the lint stream. For instance if the saws cut or break the cotton seed or if the seed is cut or broken in the roll box the part that is broken is on the outside of the seed roll and is projected through the perforations in the wall of the roll box.

While for purposes of exemplification a particular embodiment of the invention has been shown and described according to the best present understanding thereof.' It will be apparent to those skilled in the art that many changes in the construction and arrangement of the parts thereof may be made without departing from the true spirit and scope of the invention.

What is claimed as new is as follows:

1. A trash remover for a linter comprising a roll box, a plurality of saws rotating on an axis substantially parallel to the axis of said roll box, said saws including edge portions extending into said roll box, a perforate cylinder rotatably mounted substantially co-axial Within said roll box on an axis substantially parallel to the axis of the saws, a rotary conveyor engaging the inner peripheral surface of the perforate cylinder and extending longitudinally thereof, and suction means in communication with the perforate cylinder for applying a longitudinal suc tional force within said cylinder to withdraw trash therefrom.

2. A trash remover as set forth in claim 1 wherein said roll box includes peripheral aperture portions .in the side walls thereof, said aperture portions permitting the passage therethrough of trash of a different consistency than that passing through the perforate cylinder.

3. In a cotton seed cleaning machine having a roll box, a plurality of lint saws rotating on an axis substantially parallel to the axis of the roll box, said saws including edge portions extending into said roll box, a perforate cylinder rotatably mounted within said roll box on an axis substantially parallel to that of the lint saws, a rotary conveyor engaging the inner peripheral surface of the perforate cylinder and extending longitudinally thereof, suction means in communication with said perforate cylinder providing a longitudinal suctional force within said cylinder and withdrawing trash therefrom, said roll box including a perforate side wall portion having trash aperture portions permitting the passage therethrough of a trash of a different consistency than that passing into said perforate cylinder, and means for adjusting the perforate side wall of said roll box toward and away from the axis of said roll box.

4. In a cotton seed cleaning machine as set forth in claim 3 wherein said perforate side wall portion of said roll box comprises an arcuate seed board extending the length of said roll box, a cover member extending in overlying relationship to said seed board and carried thereon,

said cover member including a lower edge portion adjustably positioned on said seed board providing a longitudinally extending passage portion permitting the passage of trash therethrough.

5. In a cotton seed cleaning machine as set forth in claim 4 wherein said seed board includes a plurality of transverse rib portions on a rear portion thereof, said rib portions including horizontally aligned aperture portions extending therethrough, eccentric elements rotatably supported in said aligned apertures, and a rotary shaft extending through said eccentric elements adjusting said seed board toward and away from the axis of said roll box.

References Cited in the file of this patent UNITED STATES PATENTS 26,516 Olmstead Dec. 20, 1859 269,305 McDermott et a1 Dec. 19, 1882 475,988 Scott May 31, 1892 1,341,168 Cotton May 25, 1920 2,112,436 Carr Mar. 29, 1938 2,149,145 Morgan Feb. 28, 1939 2,149,669 Cumpston Mar. 7, 1939 FOREIGN PATENTS 515,415 France Nov. 25, 1920 

